spitfire header gasket question

TrailBeast said

If you don’t find out what you asked, Remflex gaskets are the best you can get for hedders.

Here’s some reviews on them, and I agree with the 5 star rating 100%.
[URL]https://www.google.com/search?...AEA&sclient=mobile-gws-wiz-hp#fpstate=reviews[/URL]

Click to expand...

I've heard nothing but good about remflex. They're certainly in the running. Meantime I've got these ready to be installed:
Mr. Gasket 358 Mr. Gasket Performance Header Gaskets

They are really old stock but look like they'd work. About 1/2 the thickness of the originals